Combined type-writing and computing machine.



R.M.BECKER COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED SEPT. 5. i913.

1,246,800. Patented Nov. 13, 1917.

2 SHEETSSHEET I.

R. M. BECKER.

COMBINED TYPE WRITING AND COMPUTING MACHINE. APPLICATION FILED SEPT. 5. 1913.

1 346,800. Patented Nov. 13, 1917 2 SHEETSSHEET 2- UNITED STATES PATENT OFFICE.

RICHARD M. BECKER, 0F BROOKLYN, NEW YORK, .ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNDERWOOD COMPUTING MACHINE Gfilv'I'EAHY, OF YORK, N. Y., A CORPO RATION OF NEW YORK.

Specification of Letters ?atent.

Patented Nov. 13, 1917.

Application filed September 5, 1913. Serial No. 788,189.

To all 107mm it may concern:

Be it known that I, RICHARD M. Bnonnn, a citizen of the United States, residing in Brooklyn borough, city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Combined Type-IVriting and Computing Machines, of which the following is a specification.

This invention relates to a combined typewriting and computing machine of the Underwood-Hanson type and more especially to the means for controlling the connection between the typewriting mechanism and the computing mechanism where the denominational columns of the two are accorded, and, further, is an improvement on an application of William L. Gumprecht, No. 787,844, filed September 3, 1913.

In the form of machine with which this invention is illustrated, the numeral keys in addition to causing a writing of the numbers, also cause a setting up of the numbers so that the same can be subsequently run up on computing wheels. In this instance the setting up is accomplished by the offsetting of individuals of a nest of pins from their fellows to determine the extent of movement of denominational members bearing the same, which denominational members rotate the computing wheels amounts corresponding to the particular pins set. The setting of the pins is accomplished by a method of cross selection, so that the pins set will correspond not only with the values of the numeral keys struck, but also with the denominational columns in which the numbers are written.

The selection of the denominational columns of the computing mechanism is controlled through the typewriting carriage, by one or more tappets corresponding to one or more computing zones. These tappets non mally lie in an inefiective position but are manipulated when coming into a computing zone, by a zone-controlling roller, so as to become effective to control the denominational selecting for the computing mecha nism. This zone-controlling roller, however, may be itself rendered ineffective when backspacing, when jumping the carriage by 'tabulating mechanism, and, further, when returning the carriage to begin a new line,

whereby the tappets will not be uselessly in action. All these three means of throwing the Zone-controlling roller out of action are controlled electrically by the completion of an electric circuit to a solenoid, which, when excited to action, itself actuates a set of linkages to shift the zone-controlling roller to an ineffective position.

Other features and advantages will hereinafter appear.

In the drawings Figure 1 is avertical section taken from front to rear with parts broken away to show the underlying structure and with parts omitted for the sake of simplicity.

Fig. 2 is a detail skeleton view in side elevation of the escapement mechanism for the carriage.

Fig. 3 is an enlarged detail view partly in vertical section of the solenoid and the electrical connect-ions thereto.

F 4 is a skeleton perspective view showing the general relation of the solenoid, the electrical connections therefor, and the means whereby the solenoid throws the denominational selecting mechanism and the zone-controlling roller out of action.

Fig. 5 is a detail perspective view showing the electrical switch for completing the circuit to the solenoid, which is closed when any of the tabulating keys are struck.

Fig. 6 is a detail View, partly in section, of the spring barrel, showing the frictional connection of the switch-closing arm which is brought into play when the carriage starts on the return movement.

Referring more particularly to the separate parts of this invention as embodied in the form shown in the drawings, 1 indicates numeral keys and 2 alphabet keys (Fig. 1), which depress key-levers 3 to rock bell cranks 4 and thus swing type-bars 5 up rearwardly against the front side of a platen 6 mounted to rotate on a carriage 7 which travels back and forth. The movements of the carriage 7 are controlled in a letter-feeding direction by an escapement mechanism indicated in general at 8 (Fig. 2), which comes into play when any of the alphabet or numeral keys are actuated, to cause a step-by-step movement of the carriage 7, and thus control the denominational columns as written in on the worksheet carried by the platen 6. The escap ement mechanism 8 includes a rack 9 movably mounted on the carriage 7, so as to swing into and out of engagement with a pinion 10 connected to an escapement wheel 11. The latter is controlled in its movements by fixed and movable dogs 13, which in turn are rocked by a universal frame 14, which is actuated at the actuation of any of the alphabet or numeral keys, by heels 15 located on each of the type-bars 5 and engaging the universal frame 14.

The cardage 7 is given its movement in a letter-feeding direction by a spring barrel 16 (Figs. 4 and 6), which is connected by a band 1? to the carriage 7 by means of any suitable catch 18. The spring barrel 16 includes a casing 19 loosely mounted on a fixed shaft 20 and a spring 21 connected at one end to the casing 19 and coiled about the shaft 20 to which it is secured.

in addition to the step-by-step movement of the carriage, it may he jumped from one computing zone or column to another by a tabulating or jlimp-movement mechanism. This mechanism includes tabulating keys 23 mounted on key-levers 2 which are pivoted intermediate their ends and raise at their rear ends, plunger's 25 so that the upper ends thereof may project into the path of steps 26 adjustably mounted on a rack 27 carried by the carriage 7.

In order to enable the carriage 7 to move so that the plungers 25 and the stops 26 can determine the subsequent position thereof, each of the plunger-s 25 is provided with a shoulder 28 which engages to rock a universal arm 29 secured to a rock shaft 30. Thus when any of the tabulating keys 23 is struck, this shaft 30 will be rocked so that an arm 31 carried thereby will draw down on a link 32 to rock a lever 33 carrying at its forward end a bearing roller 34-, which roller underlies the rack '9, thereby lifting this rack from engagement with the pinion 10. The carriage 7 is freed for the time being from the escapement wheel 11, and thus may be drawn by its spring barrel 16 until the next succeeding stop 26 thereon comes into engagement with the raised plunger 25.

In addition to the step-by-step and the tabulating movements of the carriage 7 means is provided for back-spacing the carriage in case it is desired to correct an error, or fo any other purpose To this end (Figs. 1 and 4:), there is provided a backspace key mounted on a key-lever 36, which is secured to a shaft 37 to rock the same. Also mounted on the shaft 37, there is provided an arm 38, which will be swungdownwardly at the depression of the bacl so as to pull on a link 39 t :1 nsion of a. spring it). The link 39 is connected to a pawl 4-1 in such a main naeaeeo nor and the pawl is so mounted that it will first be drawn into engagement with the rack 9 and then swung to the right (looking' at the front of the typewriter) a distance equivalent to one letter space, so that the carriage will be auomatically drawn to the right or in a return direction, one letter space. Details of this mechanism form in themselves no part of this invention, but are of the type usually found in the Underwood machine.

Thus far there has been described mechanism relating solely to the typewriter, all of which in itself is old in the art but which combined with the computing mechanism in such a way as to form a new combination,

In addition to actuating the type-bars 5, the numeral keys 1 set up a computation in. the computing mechanism which is indicated. in general at 56. at the same time that the numbers are written. F or this purpose, each of the numeral keys 1 bears a pendent thrust link 57, which is arranged to engap'e an arm 58 carried by a rock shaft 59. .lhat is to say, there is one of these rock shafts for each of the numeral keys and is arranged to be rocked by its correspondingkey. Each of the rock shafts is arranged to actuate a pin-setting linkage 60, the lower reach of which is arranged in superposed relation with respect to a transverse row of settable pins 61. These pins 61 are also mounted in longitudinal rows extending from front to rear of the machine, and each longitudinal row is mounted on a denominational. selecting member shown in the form of a rack bar (32. The rack bars 62 determine the denomination of the pin set, while the numeral keys 1 and the settinglinkages G0 determine the particular value of the pin set to correspond with the numeral l ey actuated. This, then, is a means of cross selection for notonly setting up the value of the numeral key but setting it up in the denominational column corresponding with the column being written in on the worksheet carried by the carriage 7.

The denominational members (32, however, are normally located in a depressed position such that the pins (31 thereon are out of each of the pin-setting; linkages 60. It is necessa y then to move those denominational members individually away from their fellows and acriazf'fm to correspond with the successive step-by-step movements of the carriage 7 for the successive denominational printing columns.

In order to accomplish this purpose. there is provided on a bar 63 carried by the carriage 7, one or more tappets 64:. which, when in a computing Zone or column, may be brought by the traveling movemei'rt of the carriage, to such a position that a pawl 65 thereon will raise a series of jacks 6G individually. These jacks 66 are pivoted intermediate their ends so that when raised at their front ends, their rear ends will be depressed to thrust downwardly links 67 which rock levers 68 forming parts of a set of transposition linkages 69, which are arranged to engage and lift the denominational determining rack bars 62 individually and in order. However, inasmuch as the carriage 7 travels from right to left during a typewriting operation and the computing action travels from left to right, the order of actuation of the acks 66 by the tappets 6-1 is inverted from that of the actuation of the pinbearing denominational selecting members 62 by the transposition linkages 69. That is to say, when the ack 66 farthest to the right is actuated, the denominational member 62 farthest to the left will be raised, and so on.

When a number has been set up by means of the pins 61, then these pins determine the extent to which the denominational seleet ing members 62 will move to run up this number. To receive the accumulated oomputation there are provided a series of computing wheels 70, which have gears 71 meshing with racks 72 provided on the forward ends of the denominational selecting menibers or bars 62.

In order to manipulate the rack bars (32, there is provided a general operator 73, which has a cross bar 7i arranged to engage the set pins 61 and advance the rack bars 62 amounts corresponding to these pins, so that the computing wheels '7 0 will be rotated corresponding amounts. The rack bars 62 may be returned by the same general operator 73, there being provided downwardly-extending lugs or teeth 7 5 which the cross bar engages on its return movement. The general operator 73 may be operated by hand in any suitable manner, as by means of one or more idlers 76 engaging one or more racks 77 on the general operator, which in turn may be rotated by one or more segments 78 on a rock shaft 79 which may be provided with a hand crank 55.

In describing the above mechanism no mention has been made as to whether or not the tappet or tappets 6i are always in action. As a ma ter of fact, they are not in action except when in a computing zone and sometimes not then if undesirable. For this purpose, the tappets 6d are pivotally mounted on the rod 63 and normally rest in a depressed position on a. dentated supporting rod St to which they are locked by a lug 85 engaging between the teeth of the rod. When in this lower position the tappets 64 are ineffective to rock the jacks 66, that is, they will pass beneath the same without touching them.

When, however, the carriage 7 arrives at such a point that a computing zone or column on the worksheet will be in register with the printing point of the typewriter, then it is desirable to raise one of the tappets (i i; to its effective position. For this purpose, there is provided a zone-controlling roller 86, which may underlie and engage a following roller 67 carried by each of the tappets (i l. The ends of the Zone-controlling roller 86 may be beveled or camshaped so that the following roller 87 will ride up on to the highest portion of the zonecontrolling roller and thus raise the tappet 0 1; corresponding with the computing Zone or column in action to its effective position.

The Zone-controlling roller 86 is mounted on a pair of arms 88, so that it itself may be swung to effective or inelfective position. The arms 88 are secured to a rock shaft 89, which is provided with an arm 90 which is engaged by a roller on one arm 91 of a bell crank lever 92 normally held in an ineffective position by a spring 93. The lower arm of the bell crank 92 is connected to a link 9% which bears, at its forward end, a fingerpiece 95, whereby the same may be operated manually to control the effectiveness of the Zone-controlling roller 86 and thus govern the effectiveness of the tappets 64. There is provided a locking slot 96, in which the linger-piece 95 is guided and in the clownwardly-extending L of which this fingerpiece may be located to lock this manual controlling mechanism in its effective position against the tension of the spring 93. The zone-controlling roller 86 is normally held in a position effective to raise the tappets 64rby a spring 97.

When the carriage is returned to begin a new line, and, in fact, when any return movement is given to the carriage, it is undesirable to have the tappets 6a operate or even engage the jacks 66, as such engageinent would merely wear the parts and create an unnecessary noise. To avoid this, means is provided whereby when the carriage starts to return the zone-controlling roller 86 will be shifted from beneath the path of travel of the tappets 64 to its ineffective position shown in dotted lines in Fig. 1.

In this instance, this is accomplished electrically by providing a solenoid 98, having a core 99 extending through the same and normally located below a central point midway between the top and bottom of the solenoid. It will thus be seen that when this solenoid is excited, the core will be sucked up to the mid-position, thereby carrying up 'ith it a rod 100 secured to the core. The upper end of the rod 100 is provided with a resting disk 101, which limits the downward movement of the core 99, and is provided with a cushioning disk 102 of any suitable material, such as felt. The disk 101 also underlies one arm of a bell crank 108, so as to rock the same about its pivot 101. The other arm of this bell crank is bifurcated or slotted to engage a roller or pin 105 mounted on a lever 106, which is rocked to force rearwardly a link 107 by engagement with a pin 108 on this link. The link 10'? is guided at one end for back-and-forth movement, by a pin-and-siotarrangement 109 and is pivotally connected at its other end to one arm 110 of a bell crank lever 111. The bell crank lever 111 is provided with another arm 112, which engages an arm 113 secured to the rock shaft 89.

It will thus be seen that when an electrical current is passed through the solenoid 98 to excite the same to action, the core 99 thereof will, through the connecting linkage, rock the shaft 89 so that the Zone-controlling roller 86 carried thereby will be moved from its effective position shown in full lines in Fig. 1 to its ineffective position shown in dotted lines in the same figure.

New. in order to excite the solenoid 98 to action, means is provided whereby the car riago at the slightest return movement, will complete an electrical circuit through the solenoid 9S and from a source of electricity. In doing this, use is made of the movement of the spring barrel 16, which rotates in a counter-clockwise direction (Fig. 6) as soon as the carriage starts to return.

Loosely mounted on a hub 11% formed on the casing- 19 of the spring barrel 1, there is provided a collar 115, which may be yield ingly clutched to the casing 19 by one or more friction clutch shoes 116, of which three are shown in this instance. These clutch shoes are pivoted to the collar 115 and are turned in at their ends to frictionally engage and cling to the casing 19, but are sufficiently loose to yield when the motion of the collar 115 is abruptly stopped. The collar 115 is provided with a downwardly-extending arm 117, which is pivotally connected, as by means of a pin-and-slot connection 118, to an electrical switch 119. The connection between the switch 119 and the arm 11'? may be of a non-conducting character by making the pin of the pin-and-slot connection of insulating material as illustrated in Fig. 41. The switch 119 is pivotally connected to a contact 120 and is arranged to engage, when closed, a contact 121, so as to complete the electrical connection between the contacts 120 and 121, and thus close the circuit to the electrical solenoid 98. The contacts 120 and 121 are provided with spring feet 122 and 123, to engage corresponding feet on electrical conductors 12% and 125 of any suitable form and material.

It will be noted in passing that the con tacts 120 and 121 are insulatingly mounted on the frame of the typewriting machine while the conductors 12st and 125 are insulatingly mounted on the computing machine ,soo

frame, and that the contacts 120 and 121, while making an electrical connection with the conductors 124 and 125, do so merely by engagement therewith and not by being secured thereto. This arrangement enables the typewriting machine to be moved bodily from the computing machine without the necessity of unfastening any electrical connection.

The conductors 124 and are secured, respectively, to a pair of terminal posts 120 and 127 ig. 3), which extend into a switch box 128 of any suitable form and material. One of the wires, 129, of the source of current, is secured to the terminal. 126, while one of the wires, 130, leading to the solenoid 98 is secured to the terminal post 12?. supplementary terminal post 181 is pro vided, to which is secured the other of the wires 132 from the source of supply and the other of the wires 133 leading to the solenoid 98.

It will thus be seen that when the switch 119 is swung to its closed position by a reverse rotation of the spring barrel 110, the circuit will be completed from the source of supply to the solenoid 98, so that the same. will be excited to raise the core 99 and thus, through the connecting linkage, shift the zone-controlling roller 80 to its ineffective position. The upward movement of the core 99 is limited by washers 131 secured to the core 99 and adjustably mounted thereon by a screw-threaded connection, so as to vary the extent of movement of the core 99. The impact may be deadened by a washer 133 of any suitable material, such as rubber or felt.

As soon as the carriage starts to move in a letter-feeding direction, even though but for a single letter space, the friction shoes 116 will clutch the casing 19, so as to swing the switch arm 11'? to a position such that the connection of the switch 119 with the contact 121 will be broken. The movement of the switch arm 11'? in this direction is limited by abutting against the end of the rock shaft 30. When this limit of move ment of the arm 11% is reached, the shoes 110 will slip permitting of further rotation of the spring barrel 16 and thus a movement of the carriage 7 without interfering there with.

it is to be understood that when the backspacing mechanism is operated by an actuation of the back-space key 35, the friction shoes 116 will, even for this short movement, make the electrical connection by closing the switch 119.

It has been found advantageous to render the zone-controlling mechanism ineffective when the typewriter carriage moves rapidly in letter-feeding direction, as it does whenever a tabulating key is depressed. One connection for accomplishing this is shown in the co-pending application of Frederick A. Hart, Serial No. 466,836, filed December 10, 1908, wherein the tabulating keys manually make the denomination-selecting mechanism ineffective whenever they are de pressed. It has been found, however, that it is desirable to use a strong spring 97 for holding the zone-controlling roller 86 in its upright position, where it makes the tappet 65 effective on the denomination-selecting mechanism. This spring makes the operation of the tabulating keys decidedly stifi, and this stiff operation distracts the attention of the operator sufficiently to be a handicap in doing good work. This being so, be cause any operation that is hard or stiff distracts the mind of the operator and thereby increases the liability of error. In

the present mechanism, I have shown a power device which is effective to swing out the Zone-controlling roller 86, thus taking the load off the keys themselves. To accomplish this, the electrical circuit to the solenoid. 98 is closed when any of the tabulating keys are struck. In carrying out this feature, the rock shaft 30, which is actuated whenever any of the tabulating keys are actuated, carries a camming arm 136, which is insulated. from but arranged to manipulate a spring switch 137. The spring switch 137 is secured to one of the contacts, as 121, and is arranged to engage the other of the contacts, 120, when the shaft 30 is rocked. It will thus be seen that whenever any of the tabulating keys are struck, the spring switch 137 will be distorted to complete the electrical connection between the contacts 120 and 121, and thus complete the circuit to the solenoid 98, so that it will act, as in the case of a return movement of the carriage, to shift the Zone-controlling roller 86 to its ineffective position shown in dotted lines in Fig. 1.

We have, then, a denominational selecting mechanism whereby the denominational columns as computed by the computing mechanism may be accorded with the denominational columns as typewritten by the typewriting mechanism, which selecting mechanism may be rendered ineffective during a tabulating movement of the carriage and also during back-spacing and returning movements of the carriage, and this is all done by the simple expedient of completing an electrical circuit to the electro-magnetic means including the solenoid 98.

Variations may be resorted to within tl e scope of the invention, and portions of the improvements may be used without others. I do not herein claim the manual making of a denomination-selecting mechanism ineffective, such being the invention of Frederick A. Hart, and being shown in his application No. 466,836 above referred to. Such a device is also shown in the applications of WVilliam L. Gumprecht, No. 7 87 ,844,

filed September 3, 1913, and No. 725,384, filed October 12, 1912, and in the application of John N Thornton, No. 690388, filed April 13, 1912, among others. My invention distinguishes from such in providing a source of power which takes the load of actually operating such parts off the fingers of the operator.

Having thus described my invention, I claim:

1. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage having a letterspacing movement and adapted to have a rapid tabulating movement, a denominationselect-ing means including a dog and devices which said dog is adapted to shift, a tabulating device for effecting such tabulating movement, and a source of power inde pendent of said tabulating device, but controlled thereby for making said dog ineffective on said denomination devices.

2. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage having a letterspacing movement, of a denomination-selecting device comprising a tappet and denominational members on which said. tappet is effective, means normally tending to hold said tappet in an effective position, a source of power adapted to overcome said means, a fabulating mechanism for rapidly positioning said carriage, and connections whereby said tabulating mechanism makes said source of power effective to overcome said holding means.

3. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage having a letterspacing movement, a tabulating device for rapidly positioning said carriage, a backspacing device for moving said carriage letter-space intervals backwardly, a Zone-selecting device for said computing mechanism, a spring normally holding said Zone-selecting device in effective position, a source of power, and connections whereby the tabulating device, the back-spacing movement and the returning movementof the carriagecause said source of power to move said zone-selecting device to ineffective position against the tension of its spring.

4-. The combination with a computing mechanism, of a tabulating mechanism in cluding a traveling carriage, Zonecontrolling means coiiperating with said carriage during the traveling movement thereof to determine different computing zones and the activity of said computing mechanism in said zones, said typewriting mechanism also including tabulating mechanism for jumping said carriage to different computing zones, electromagnetic means for controlling the effectiveness of said zone-controlling means, and means controlled from said tabulating mechanism for exciting said electromagnetic means to action.

5. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage and tabulating mechanism for said carriage, zone-controlling means cooperating with said carriage during the traveling movement thereof to control the activity of said computing mechanism for different computing Zones or columns, electromagnetic means for governing the effectiveness oi said zone-controlling means, means brought into play on the return movement of said carriage for exciting said electromagnetic means to action, and means brought into play at an actuation of said tabulating mechanism for exciting said electromagnetic means to action.

6. The combination with a computing mechanism, of a typewriting mechanism ineluding a traveling carriage, tabulating mechanism for bringing said carriage to dilterent computing zones or columns, and back-spacing mechanism for returning said carriage single letter spaces, Zone-controlling means cooperating with said carriage to determine the activity oi: said computing mechanism at different computing zones or columns, electromagnetic means for silencing said zonecontrolling means, means brought into play at a back-spacing movement of said carriage by said back-spacing mechanism for exciting said electromagnetic means to action, and means brought into play at the actuation of said tabulating mechanism for exciting said electromagnetm means to action.

7. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage, back-spacing mechanism for said carriage and tabulating mechanism for jumping said carriage to different computing Zones or columns, Zonecontrolling means cooperating with said carriage during the traveling movements thereof for determining the activity of said computing mechanism for different computing Zones, electromagnetic means for silenc ing said Zone-controlling means, means brought into play at the return movement of said carriage and at aback-spacing move ment of said carriage by said back-spacing mechanism for exciting said electromagnetic means to action, and means brought into play at a tabulating movement of said carriage through the control of said tabulating mechanism for exciting said electromagnetic means to action.

8. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage, a Zone-selecting device for connecting said carriage to said computing mechanism, a spring normally holding said zone-selecting device ef fective, a source of power under the control of a plurality of devices forming part of said typewriting mechanism, said devices including a tabulating device for positioning said carriage, and means whereby said source of power is etiective on the actuation of said tabulating device for moving said zone-selecting device to ineffective position against the tension of its spring.

9. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage and tabulating mechanism for jumping said carriage to diliierent computing Zones or columns, zonecontrolling means for determining the activ ity of said computingmechanism at different computing Zones or columns determined by said carriage, electromagnetic means for silencing said zone-controlling means, a circuit to said electromagnetic means, and a switch for closing said circuit actuated by said tabulating mechanism.

10. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage and tabulating mechanism for jumping said carriage to different computing zones or columns, zonecontrolling means cooperating with said carriage to determine the activity of said computing mechanism at different computing zones or columns as determined by said carriage, electromagnetic means for silencing said zone-controlling means, an electrical circuit to said electromagnetic means, a switch operated during a return movement of said carriage for closing said switch and thereby exciting said electromagnetic means to action, and a switch operated during a tablulating movement of said carriage for closing said circuit to excite said electromagnetic means to action.

11. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage and tabulating mechanism for jumping said carriage to determine computing zones or columns, xonecontrolling means cooperating with said carriage for determining the activity of said computing mechanism for different computing Zones or columns as determined by the position of said carriage, electromagnetic means for silencing said zone-controlling means, a circuit to said elcctromagiietic means, a switch for closing said circuitoperated during a return movement of said carriage, and a switch for closing said circuit operated by said tabulating mechanism during a jump movement of said carriage.

12. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage, driving means for said carriage and tabulating mechanism for jumping said carriage to different computing Zones or columns, zone-controlling means cooperating with said carriage for determining the activity of said computing mechanism at different computing zones or columns as determined by the position of said carriage, electromagnetic means for silencing said zone-controlling means, a circuit to said electromagnetic means, a switch for closing said circuit operated by said driving means, to excite said electromagnetic means to action, and switch actuated by said tabulating mechanism to close said circuit and excite said electromagnetic means to action.

13. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage and tabulating mechanism for jumping said carriage to different computing Zones or columns, a tap pet for according the denominations as computcd by said computing mechanism w th the denominations as writ en by said typewriting mechanism, means for controlling the effectiveness of said tappet, and electromagnetic means controlled from said tabulating mechanism for operating said controlling means.

l. The combination with a computing mechanism, of a typewriting mechanism in cluding a traveling carriage, and a series of tabulating keys for jumping said carriage to different computing Zones or col umns, zone-controlling means cooperating with said carriage for determining the activity of said computing mechanism for different computing zones or columns as determined by said carriage, electromagnetic means for shifting said zone-controlling means, a circuit to said electromagnetic means, a switch for closing said circuit, and

means universal to all of said tabulating keys for closing said switch so that said electromagnetic means will be excited to action at the operation of any of said tabulating keys.

15. The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage and a series of tabulating keys for jumping said carriage to different computing zones or columns, Zonecontrolling means coiiperating with said carriage to determine the activity of said computing mechanism for different computing zones or columns, electromagnetic means for actuating said zone-controlling means, a circuit to said electromagnetic means, aswitch for closing said circuit, an arm universal to all of said tabulating keys, a shaft rocked by said arm, and a switch closer operated by said shaft for manipulating said switch at the actuation of any of said tabulating keys.

16. T he combination with a computing mechanism, of a typewriting mechanism including a traveling carriage, stops mounted on said carriage for determining the position thereof, plungers movable to engage said stops, and a series of tabulating keys, one individual to each of said plungers for moving the same into the path of said stops, zonecontrolling means cooperating with said carriage to determine the active periods of said computing mechanism to correspond with the different computing Zones or columns as determined by the position of said carriage, electromagnetic means for silenc-' ing said Zone-controllin means, a circuit to said electromagnetic m ans, a switch for closing said circuit, an arm universal to all of said plungers to be operated thereby, and a switch closer connected to be operated by said arm and arranged to close said switch so as to excite said electromagnetic means to action at the striking of any of said tabulating keys.

1?. The combination with a computing m chanism, of a typewriting mechanism including a traveling carriage and tabulating means for jumping said carriage from one computing zone to another, atappet carried by said carriage, connections between said tappet and said computing mechanism, wher by parts of said computing mechanism may be operated from said tappet and thus from said carriage, a Zone-controlling roller determining the activity of said tappet, a set of linkages for shifting said Zone-controlling roller, electromagnetic means for actuating said linkages, a circuit to said electromagnetic means, a switch for closing said circuit, and means operated by said tabulating means for closing said switch.

18. The combination with a computing mechanism, of a typewriting mechanism cooperating with aid computing mechanism to effect combined typewriting and computing operations, said typewriting mechanism including a traveling carriage, means for giving to said carriage automatically, stepby-step advancing movements, and or ad vancing movements, said carriage also having a return movement, zone-controlling means for controlling from said carriage the computing zone of said computing mechanism, and a single electrical means for silencing said zone-controlling means during the time said automatic means is acting to give said carriage its major advancing movementand also during returning movements of said carriage.

19. The combination with a computing mechanism, of typewriting mechanism including a traveling carriage, tabulating mechanism :tor said carriage, denominational selecting mechanism between said carriage and said computing mechanism whereby the denominations of the digits as written will be accorded with the denominations of the digits as computed, a device connected to said carriage to return therewith, and the same electrical means controlled from both said tabulating mechanism and said device, for rendering said denominational selecting mechanism ineffective, so that the carriage may be either tabulated or returned without interterence from said denominational selecting mechanism.

20. The combination with a computing mechanism, of a typewriting mechanism, said typewriting and said computing mechanism cooperating to effect combined typewriting and computing operations, said typewriting mechanism including a traveling carriage, automatic means for giving to said carriage step-by-step and major movements, Zone-controlling means controlled from said carriage determining the computing zones of said computing mechanism, and electrical means for controlling said zone-controlling means, having a circuit closable at a plurality of points, in action during different major movements of said carriage, as controlled by said automatic means.

21. The combination with a computing iechanism, of a typewriting mechanism including a traveling carriage, tabulating mechanism for bringing said carriage to different computing zones or columns, a backspacing key for returning said carriage letter-space intervals, a Zone-selecting device cooperating with said carriage to determine the activity of said computing mechanism, a spring no mally holding said zone-selecting device effective, a source of power adapted to be made effective by the return of said carriage to less than a single letter-space, connections whereby such return of said carriage makes said zone-selecting device ineffective against the tension of said spring, and connections whereby said tabulating mechanism also makes said source of power effective to make said scone-selecting device ineiiective.

The combination with a computing mechanism, of a typewriting mechanism including a traveling carriage, a series of tabulating keys for positioning said carriage, a universal. bar operated by said keys, a zone-selecting device adapted to make said computing mechanism effective, a spring normally holding said zone-selecting device effective, .a source of power separate from said keys, and means whereby said universal bar makes said source of power effective to move said Zone-selecting device against the tension of said spring to ineffective position.

The combination with a con'iputing mechanism, of typewrii'iing iechanism including a traveling carriage, tabulating keys for positioning said carriage, a zoneselecting device cooperating with said carriage for determining where said computing mechanism shall be effective, a spring normally holding said zone-selecting device eilective, a source 01" power for moving said zone-selecting device to ineffective position against the tension of said spring, a circuit controlling said source of power to operate said device, said circuit comprising a switch under the control of said tabulating keys, and a switch adapted to be closed by any return movement of said carriage to close said circuit and make said zone-selecting device ineifective.

RICHARD M. BECKER.

Witnesses JULiUs DUCKSTINE, Gno. WV. NAYLOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

